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<div class="title">ModuleAccess.h</div>  </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">//</span>
<a name="l00002"></a>00002 <span class="comment">// Copyright (C) 2004 Andras Varga</span>
<a name="l00003"></a>00003 <span class="comment">//</span>
<a name="l00004"></a>00004 <span class="comment">// This program is free software; you can redistribute it and/or</span>
<a name="l00005"></a>00005 <span class="comment">// modify it under the terms of the GNU Lesser General Public License</span>
<a name="l00006"></a>00006 <span class="comment">// as published by the Free Software Foundation; either version 2</span>
<a name="l00007"></a>00007 <span class="comment">// of the License, or (at your option) any later version.</span>
<a name="l00008"></a>00008 <span class="comment">//</span>
<a name="l00009"></a>00009 <span class="comment">// This program is distributed in the hope that it will be useful,</span>
<a name="l00010"></a>00010 <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00011"></a>00011 <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
<a name="l00012"></a>00012 <span class="comment">// GNU Lesser General Public License for more details.</span>
<a name="l00013"></a>00013 <span class="comment">//</span>
<a name="l00014"></a>00014 <span class="comment">// You should have received a copy of the GNU Lesser General Public License</span>
<a name="l00015"></a>00015 <span class="comment">// along with this program; if not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
<a name="l00016"></a>00016 <span class="comment">//</span>
<a name="l00017"></a>00017 
<a name="l00018"></a>00018 <span class="preprocessor">#ifndef __INET_MODULEACCESS_H</span>
<a name="l00019"></a>00019 <span class="preprocessor"></span><span class="preprocessor">#define __INET_MODULEACCESS_H</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include &quot;INETDefs.h&quot;</span>
<a name="l00022"></a>00022 
<a name="l00023"></a>00023 
<a name="l00030"></a>00030 INET_API cModule *findModuleWherever(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, cModule *from);
<a name="l00031"></a>00031 
<a name="l00038"></a>00038 INET_API cModule *findModuleWhereverInNode(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, cModule *from);
<a name="l00039"></a>00039 
<a name="l00046"></a>00046 INET_API cModule *findModuleSomewhereUp(<span class="keyword">const</span> <span class="keywordtype">char</span> *name, cModule *from);
<a name="l00047"></a>00047 
<a name="l00051"></a>00051 <span class="keywordtype">bool</span> isNode(cModule *mod);
<a name="l00052"></a>00052 
<a name="l00057"></a>00057 INET_API cModule *findContainingNode(cModule *from);
<a name="l00058"></a>00058 
<a name="l00059"></a>00059 
<a name="l00064"></a>00064 <span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;
<a name="l00065"></a><a class="code" href="a00146.html">00065</a> <span class="keyword">class </span>INET_API <a class="code" href="a00146.html">ModuleAccess</a>
<a name="l00066"></a>00066 {
<a name="l00067"></a>00067      <span class="comment">// Note: MSVC 6.0 doesn&#39;t like const char *N as template parameter,</span>
<a name="l00068"></a>00068      <span class="comment">// so we have to pass it via the ctor...</span>
<a name="l00069"></a>00069   <span class="keyword">private</span>:
<a name="l00070"></a>00070     <span class="keyword">const</span> <span class="keywordtype">char</span> *name;
<a name="l00071"></a>00071     T *p;
<a name="l00072"></a>00072   <span class="keyword">public</span>:
<a name="l00073"></a>00073     <a class="code" href="a00146.html">ModuleAccess</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *n) {name = n; p = NULL;}
<a name="l00074"></a>00074     <span class="keyword">virtual</span> ~<a class="code" href="a00146.html">ModuleAccess</a>() {}
<a name="l00075"></a>00075 
<a name="l00076"></a>00076     <span class="keyword">virtual</span> T *<span class="keyword">get</span>()
<a name="l00077"></a>00077     {
<a name="l00078"></a>00078         <span class="keywordflow">if</span> (!p)
<a name="l00079"></a>00079             p = <span class="keyword">get</span>(simulation.getContextModule());
<a name="l00080"></a>00080         <span class="keywordflow">return</span> p;
<a name="l00081"></a>00081     }
<a name="l00082"></a>00082 
<a name="l00083"></a>00083     <span class="keyword">virtual</span> T *<span class="keyword">get</span>(cModule *from)
<a name="l00084"></a>00084     {
<a name="l00085"></a>00085         T *m = getIfExists(from);
<a name="l00086"></a>00086         <span class="keywordflow">if</span> (!m) opp_error(<span class="stringliteral">&quot;Module (%s)%s not found&quot;</span>, opp_typename(<span class="keyword">typeid</span>(T)), name);
<a name="l00087"></a>00087         <span class="keywordflow">return</span> m;
<a name="l00088"></a>00088     }
<a name="l00089"></a>00089 
<a name="l00090"></a>00090     <span class="keyword">virtual</span> T *getIfExists()
<a name="l00091"></a>00091     {
<a name="l00092"></a>00092         <span class="keywordflow">if</span> (!p)
<a name="l00093"></a>00093             p = getIfExists(simulation.getContextModule());
<a name="l00094"></a>00094         <span class="keywordflow">return</span> p;
<a name="l00095"></a>00095     }
<a name="l00096"></a>00096 
<a name="l00097"></a>00097     <span class="keyword">virtual</span> T *getIfExists(cModule *from)
<a name="l00098"></a>00098     {
<a name="l00099"></a>00099         <span class="keywordflow">if</span> (!from) opp_error(<span class="stringliteral">&quot;Invalid argument: module must not be NULL&quot;</span>);
<a name="l00100"></a>00100         cModule *m = findModuleWhereverInNode(name, from);
<a name="l00101"></a>00101         <span class="keywordflow">return</span> <span class="keyword">dynamic_cast&lt;</span>T*<span class="keyword">&gt;</span>(m);
<a name="l00102"></a>00102     }
<a name="l00103"></a>00103 };
<a name="l00104"></a>00104 
<a name="l00105"></a>00105 <span class="preprocessor">#endif</span>
<a name="l00106"></a>00106 <span class="preprocessor"></span>
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